Hilgertner L, Szostek M, Malek A K, Staszkiewicz W
Department of General and Thoracic Surgery, Medical Academy, Warsaw, Poland.
Int Angiol. 1994 Mar;13(1):5-9.
In 40 patients with unilateral occlusion of the internal carotid artery, using a transcranial Doppler device, blood flow velocity in the ipsilateral ophthalmic and middle cerebral artery was registered. During compression of the ipsilateral common carotid artery a decrease of ophthalmic artery flow velocity was noted in 39 patients (97.5%) and a decrease of middle cerebral artery flow velocity in 8 patients (20%). The average decrease of mean velocity in the middle cerebral artery was 4.5% of the initial value. During compression of the ipsilateral superficial temporal and facial arteries ophthalmic artery flow velocity decreased in 10 patients (25%) and no marked decrease of middle cerebral blood flow was noted. Conclusions. The external carotid artery in most of the patients with internal carotid occlusion is of no significance for cerebral blood supply, but it is the most important source of collateral blood supply to the eye. The maxillary artery, and not superficial temporal and facial as it seemed in periorbital Doppler examinations, is the branch of the greatest collateral value for the eye and brain.
在40例单侧颈内动脉闭塞患者中，使用经颅多普勒装置记录同侧眼动脉和大脑中动脉的血流速度。在压迫同侧颈总动脉时，39例患者（97.5%）出现眼动脉血流速度下降，8例患者（20%）出现大脑中动脉血流速度下降。大脑中动脉平均速度的平均下降幅度为初始值的4.5%。在压迫同侧颞浅动脉和面动脉时，10例患者（25%）眼动脉血流速度下降，未观察到大脑中动脉血流明显下降。结论：在大多数颈内动脉闭塞患者中，颈外动脉对脑供血无重要意义，但它是眼部侧支供血的最重要来源。对上颌动脉而言，而非眶周多普勒检查中看似重要的颞浅动脉和面动脉，是对眼和脑具有最大侧支价值的分支。
